CN102726086A - Method and device for spectrum sharing in wireless distributed communication network - Google Patents
Method and device for spectrum sharing in wireless distributed communication network Download PDFInfo
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- CN102726086A CN102726086A CN2009801620013A CN200980162001A CN102726086A CN 102726086 A CN102726086 A CN 102726086A CN 2009801620013 A CN2009801620013 A CN 2009801620013A CN 200980162001 A CN200980162001 A CN 200980162001A CN 102726086 A CN102726086 A CN 102726086A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
Abstract
A method and a device for spectrum sharing in a wireless distributed communication network are provided. The method includes that several communication groups compose a sharing community which shares spectrum, each communication group sends, according to a communication scheme determined by said each communication group respectively, a training signal to evaluate the communication scheme, and sends the evaluation result to other communication groups. During a time period, only one communication group updates the communication scheme, namely, several communication groups update the communication schemes in turn during different time periods. With the manner described above, distributed spectrum sharing is performed without support of IP connection, and the spectrum utilization efficiency can be improved.
Description
The method and apparatus of frequency spectrum share in wireless distributed communication network
Technical field
The present invention relates to the method and apparatus of frequency spectrum share, more particularly to the frequency spectrum share in wireless distributed communication network method and apparatus.Background technology
For distributed frequency spectrum sharing, a kind of typical prior art sees IEEE 802.16h WiMAX.The system architecture of the program is as shown in Figure 1.Adjacent base station with overlap signal overlay area constitutes frequency spectrum share community, and its intermediate frequency spectrum is shared in a distributed manner.Each base station has a distributed data base, stores the shared information of frequency spectrum resource that is actual use and will using.These distributed data bases can rely on coexistence agent（Coexistence Proxy) accessed by IP connections.
Before frequency spectrum share community is entered, an initial base station（IBS , Initializing Base
Station) signaling gap will coexists the initial of channel coexists（ICSI, Initializing Coexistence Signaling Interval) middle its information of broadcast.Its adjacent base station, that is, active base station（OBS, Operating Base Station), respective current spectral use information using coexistence protocol message will be sent to by initial base station by coexistence agent.Based on acquired frequency spectrum use information, which spectral slice is initial base station can be learnt using（When/frequency resource block）.When initial base station can find the spectral slice of free time, then the frequency spectrum cavity-pocket can be utilized.And when without available idle frequency spectrum fragment, initial base station will initiate a negotiation of spectrum process between active base station, with the working channel of share-the-work base station.The content of the invention
Distributed frequency spectrum sharing scheme in 802.16h depends on IP network.Communication information between many number systems, such as coexistence protocol message, are passed on by IP networks by the protocol interface of coexistence agent.The program can mitigate the signaling consumption of air interface, however, the program can not be applied in the distributed network without IP connections.Further, it is necessary to set coexistence agent to turn for agreement
Change, this will increase the complexity and cost of spectra sharing system.
In addition, in this scenario, frequency spectrum is utilized by a kind of pattern found and filled：Initial base station will find the spectral slice of free time first.If available free frequency spectrum resource, is filled.If not provided, initial base station can start the negotiation of spectrum process of one and the active base station of light load, to obtain spectral slice.This class frequency spectrum share scheme uses the distribution method of simple frequency spectrum resource.However, the spectrum sharing mechanisms and non-optimal for from principle, because without distributing Optimization Mechanism using frequency spectrum in frequency spectrum share community, therefore be difficult to obtain high spectrum utilization.
In order to solve the above problems, the invention provides the method and apparatus of the frequency spectrum share in wireless distributed communication network.There is provided a kind of method of the frequency spectrum share in first equipment of first communication set for wireless distributed communication network for one embodiment according to the first aspect of the invention.First communication set also includes second equipment, and first equipment, which is sent out, send data message to give second equipment, and first communication set constitutes the shared community of a shared frequency language with other at least one communication sets.This method includes：
- timing information is obtained, the timing information indicates a period, and only described first communication set can carry out communication plan renewal in the period；
- according to a communication plan of first communication set, a training signal is sent to second equipment；
- receive as a training signal receive information transmitted by second equipment, the training signal receive information indicates the receptivity of the training signal or indicates assessment result of second equipment on the basis of the receptivity of the training signal to the communication plan；
- receive and information is assessed as the communication plan transmitted by each communication set in other described at least one communication sets, each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined；And-information and a predetermined Optimized Iterative strategy are assessed according to the training signal receive information, the communication plan, the described logical of first communication set is updated in the period
Letter scheme.
Due to that over a period, there can only be a communication set to carry out communication plan renewal, would not occur all communication sets in a shared community while carrying out communication plan more news.In this way, it can just avoid due to multiple communication sets while carrying out the larger change of the communication plan of the shared frequency spectrum of multiple communication sets caused by communication plan updates, so as to which when using Optimized Iterative policy update communication plan, final communication plan is obtained as soon as possible.In addition, by sending training signal according to communication plan, communication set, which just can accurately understand, will be used for the channel situation of transmitting data information, contribute to communication set to determine final communication plan.In addition, assessing information and training signal receive information by interface transmission time sequence information in the air, training signal, communication plan, it is possible in the case of no IP connections, realize distributed frequency spectrum sharing.There is provided a kind of method of the frequency spectrum share in second equipment of first communication set for wireless distributed communication network for one embodiment according to a second aspect of the present invention.First communication set also includes first equipment, and first equipment, which is sent out, send data message to give second equipment, and first communication set constitutes the shared community of a shared frequency spectrum with other at least one communication sets.This method includes：
- timing information is obtained, the timing information indicates a period, and only described first communication set can carry out communication plan renewal in the period；
- receive as the training signal transmitted by first equipment；
- receive and information is assessed as the communication plan transmitted by each communication set in other described at least one communication sets, each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined；And-information and a predetermined Optimized Iterative strategy are assessed according to receptivity, the communication plan of the training signal, the communication plan of first communication set is updated in the period.There is provided a kind of first equipment of first communication set for wireless distributed communication network frequency spectrum share for one embodiment according to a third aspect of the present invention.First communication set
Also include second equipment, first equipment, which is sent out, send data message to give second equipment, first communication set constitutes the shared community of a shared frequency spectrum with other at least one communication sets.First equipment includes：
One acquisition device, it is used to obtain a timing information, and the timing information indicates a period, and only described first communication set can carry out communication plan renewal in the period；
One dispensing device, it is used for a communication plan according to first communication set, sends a training signal to second equipment；
One reception device, it is used to receive as a training signal receive information transmitted by second equipment, and the training signal receive information indicates the receptivity of the training signal or indicates assessment result of second equipment on the basis of the receptivity of the training signal to the communication plan；
The reception device, which is additionally operable to receive, is assessed information as the communication plan transmitted by each communication set in other described at least one communication sets, and each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined；And
One updating device, it is used to assess information and a predetermined Optimized Iterative strategy according to the training signal receive information, the communication plan, and the communication plan of first communication set is updated in the period.There is provided a kind of second equipment of first communication set for wireless distributed communication network frequency spectrum share for one embodiment according to a fourth aspect of the present invention.First communication set also includes first equipment, and first equipment, which is sent out, send data message to give second equipment, and first communication set constitutes the shared community of a shared frequency spectrum with other at least one communication sets.Second equipment includes：
One acquisition device, it is used to obtain a timing information, and the timing information indicates a period, and only described first communication set can carry out communication plan renewal in the period；
One reception device, it is used to receive as the training signal transmitted by first equipment；The reception device, which is additionally operable to receive, is assessed information as the communication plan transmitted by each communication set in other described at least one communication sets, and each communication plan is assessed information and indicated often
Individual communication set is on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined；And
One updating device, its receptivity, described communication plan for being used for according to the training signal assess information and a predetermined Optimized Iterative strategy, and the communication plan of first communication set is updated in the period.
It is clear.Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the above of the invention and other features, objects and advantages will become more apparent：Fig. 1 is the schematic diagram of IEEE 802.16h WiMAX system frameworks；
Fig. 2 is the flow chart of method according to an embodiment of the invention；
Fig. 3 is the flow chart of method according to another embodiment of the invention；
Fig. 4 is the schematic diagram of frame structure according to an embodiment of the invention；
Fig. 5 is the schematic diagram of application scenarios according to an embodiment of the invention；
Fig. 6 is the block diagram of the first equipment according to an embodiment of the invention；And Fig. 7 is the block diagram of the second equipment according to an embodiment of the invention.
Same or similar accompanying drawing mark represents same or similar part in accompanying drawing.Embodiment
Fig. 2 is the flow chart of method according to an embodiment of the invention.
There is provided a kind of method of the frequency spectrum share in first equipment of first communication set for wireless distributed communication network for one embodiment according to the first aspect of the invention.First communication set also includes second equipment, and the first equipment, which is sent out, send data message to the second equipment.First communication set constitutes the shared community of a shared frequency spectrum with other at least one communication sets.In wireless distributed communication network, signaling and data transfer are carried out by wireless air interface between equipment.First equipment and the second equipment can be accomplished in several ways respectively, example
Such as base station, relay station or user terminal.Sent out due to the equipment of the mat woven of fine bamboo strips one and send data message to the second equipment, so it is to send determination frequency spectrum share scheme from the first equipment to the data of the second equipment to need, that is, distribute frequency spectrum resource.One communication set corresponds to the communication link being made up of an originator and a receiving end.
Frequency spectrum share community can be formed in several ways.For example, multiple communication sets in a designated area constitute a frequency language shared community, or one frequency spectrum share community of multiple communication sets composition of the multiple frequency sub-band of identical is striven unexpectedly..
As shown in Fig. 2 the method comprising the steps of 210, the first equipment obtains a timing information, and the timing information indicates a period, and only the first communication set can carry out communication plan renewal in the period.
Common control equipment is not present in distributed network, thus in a frequency spectrum share community, each communication set is updated using Optimized Iterative strategy to respective communication plan, so as to optimize the overall communication performance of the frequency spectrum share community, the especially availability of frequency spectrum.
On the basis of many optimum theories, the Optimized Iterative strategy with suitable convergence rate and optimization performance is can be designed that, such as game theory, convex optimum theory, Combinatorial Optimization theory.In these algorithms, each communication set in a shared community can have respective object function or individual function.Each communication set is distributed ground rather than independently formulates respective communication plan, to maximize respective target capabilities.By using the communication plan of each communication set of Optimized Iterative policy update, the overall communication performance of system is optimized, and the availability of frequency spectrum is improved.The performance of convergence and the optimization of Optimized Iterative strategy can be ensured by the design of suitable object function and theoretical modeling.How design optimization iterative strategy is not goal of the invention of the invention, be will not be repeated here.
The communication plan of one communication set may include that the communication set carries out the selected channel of communication and signal transmitting power, wherein, the selection of channel can be any one of the following or appoint multinomial combination：Space, time, frequency, coding.A kind of is the selection that frequency range or time slot are transmitted in shared band than more typical Channel assignment.
Generally, each communication set in a frequency spectrum share community is to start to update respective communication plan according to iteration optimization strategy under the triggering of some frequency spectrum share trigger events.Possible trigger event includes：The change of the frequency spectrum quantity and/or shield amount of shared band, there is new communication set
Frequency spectrum share community is added, or has communication set to exit frequency spectrum share community.
In the present embodiment, period of first communication set according to indicated by timing information determines when to carry out communication plan renewal, and within the period of instruction, only the first communication set can carry out communication plan renewal.In this way, in a period of time, a communication set has been only capable of in multiple communication sets in shared community and has carried out scheme renewal, would not occur all communication sets in a shared community while carrying out communication plan more news.Therefore, it can just avoid due to multiple communication sets while carrying out the larger change of the communication plan of the shared frequency language of multiple communication sets caused by communication plan updates, so as to when using Optimized Iterative policy update communication plan, iterative convergence speed is improved, final communication plan is obtained as soon as possible.
First communication set can obtain timing information in several ways.For example, by a communication set in multiple communication sets in shared community, such as the communication set of shared community is added earliest, to determine that each communication set is used for carrying out the period of communication plan renewal.And for example, mechanism, such as collision detection mechanism are striven by one kind unexpectedly in multiple communication sets in shared community, to determine that each communication set is used for carrying out the period of communication plan renewal.
This method also includes step 220, and the first equipment sends a training signal to the second equipment according to a communication plan of the first communication set.
The communication plan of first communication set can be an initial communication scheme or the communication plan by Optimized Iterative policy update.Signal transmitting power is set to unit power it is determined that can only carry out the Channel assignment of cylinder list during initial communication scheme by the first communication set.
First equipment sends training signal to examine the performance of existing communication plan by the communication plan determined by, that is, first equipment utilization training signal sends the situation of data message to simulate using identified communication plan, so as to assess identified communication plan.
While the first communication set sends training signal, other communication sets for belonging to a shared community together with the first communication set also can send training signal according to respective communication plan.Each communication set in shared community synchronously sends training signal, that is, each communication set sends training signal in the identical period.The synchronization that the training signal of each communication set is sent can be using same external clock come synchronous, such as GPS synchronizations；Or it is synchronous with same communication set, such as it is synchronous with adding the communication set of shared community earliest.
This method also includes step 230, and the first equipment is received as one transmitted by the second equipment
Training signal receive information, the training signal receive information indicates the receptivity of training signal or indicates assessment result of second equipment to the existing communication plan of the first communication set on the basis of the receptivity of training signal.
When the first equipment in the first communication set sends training signal, the second equipment of the first communication set receives the training signal transmitted by the first equipment, and examines the receptivity of training signal.The receptivity of training signal may include a variety of parameters for characterizing and receiving the wireless channel shield amount between signal shield amounts or the first equipment and the second equipment, such as the power of the training signal received, signal interference ratio, Signal to Interference plus Noise Ratio, thousand disturb the power of signal, the bit error rate, bit error rate.
In one embodiment, the receptivity for the training signal that the second equipment is detected by training signal receive information is sent to the first equipment.The receptivity of training signal can be sent to the first equipment by the second equipment using various ways by training signal receive information.A mapping table for example, the first equipment and the second equipment prestore, the mapping table is classified label to possible reception training signal performance.Label corresponding to the receptivity of the training signal detected is sent to the first equipment by the second equipment, and the first equipment can just determine the receptivity of training signal by searching mapping table.
In another embodiment, the second equipment is estimated to identified communication plan according to the receptivity of training signal and assessment result is sent into the first equipment by training signal receive information.One shared community each communication set can be estimated on the basis of the receptivity of respective training signal to the communication plan each determined.Assessment result may include plurality of kinds of contents, such as target capabilities increment or communication plan preference.Target capabilities may include message transmission rate, and when target capabilities are message transmission rate, target capabilities increment is the difference between the message transmission rate that is detected twice according to the receptivity of training signal.Communication plan preference may include the information relevant with co-channel interference, and such as co-channel interference sensitivity, co-channel interference sensitivity can be expressed as the decline of the message transmission rate caused by the increase of per unit co-channel interference.In general, the co-channel interference sensitivity of a channel is lower, then selects the tendentiousness of the channel higher.
Second equipment can will be sent to the first equipment to the assessment result of identified communication plan according to training signal using various ways by training signal receive information.A mapping table for example, the first equipment and the second equipment prestore, the mapping table is classified label to possible assessment result.Second equipment will be sent out corresponding to the label of the assessment result of identified communication plan
The first equipment is given, the first equipment can just determine the receptivity of training signal by searching mapping table.
This method also includes step 240, and the first equipment is received assesses information as the communication plan transmitted by each communication set in other at least one communication sets.Each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined.
This method also includes step 250, and the first equipment assesses information and a predetermined Optimized Iterative strategy according to training signal receive information, the communication plan, the communication plan of communication set is updated in the period indicated by timing information.
The assessment result of respective training signal of each communication set to being sent using respective communication plan in one shared community just becomes the priori for carrying out communication plan renewal.In other words, predetermined Optimized Iterative strategy can be expressed as a function；The input of the function includes the assessment result of each communication set in shared community；The output of the function includes the communication plan determined, the content such as the channel and/or identified signal transmitting power of selection.
When transmitted by the second equipment training signal receive information indicate for training signal receptivity when, the first equipment is estimated according to the receptivity of training signal to identified communication plan, and using assessment result as Optimized Iterative strategy input.When the assessment result for the second equipment on the basis of the receptivity of training signal to communication plan determined by the first communication set that the training signal receive information transmitted by the second equipment is indicated, the first equipment is by input of the assessment result directly as Optimized Iterative strategy.
First equipment will determine that whether the target capabilities of each communication set meet a renewal stop condition.Other communication sets in shared community will also perform such judgement respectively.It if being unsatisfactory for updating stop condition, will repeat the above steps, and carry out communication plan next time and update.Stop condition is updated if met, the communication plan of renewal is defined as respective communication plan by each communication set, and terminates communication plan renewal process.Afterwards, each communication set final communication plan will be communicated according to determined by each.Updating stop condition can determine in several ways.For example, the increment for updating the target capabilities that stop condition can be each communication set is respectively less than a predetermined value.When meeting this renewal stop condition, it is meant that the communication performance of each communication set is without too many room for promotion.In some other embodiment, or different communication sets are set
Fixed different predetermined value, i.e., update stop condition and be changed into the target capabilities increment of each communication set less than respective predetermined value surely.It can also be communication plan update times to update stop condition, when the update times of each communication set are more than a predetermined value, just terminate the process being updated to communication plan.
Before communication plan renewal process terminates, the communication plan updated every time can not be sent to the second equipment by the first equipment.After communication plan renewal process terminates, final communication plan is sent to the second equipment by the first equipment, so that the second equipment obtains the communication plan of the first newest communication set.
In another embodiment of this method, in addition to step, the first equipment determines that the communication plan of the first communication set assesses information according to the receptivity of training signal.The communication plan of first communication set assesses information and indicates assessment result of first equipment to identified communication plan on the basis of the receptivity of the training signal；And first equipment send the first communication set communication plan assess information give other at least one communication sets.So, other communication sets in shared community can just receive the communication plan assessment information of the first communication set, so as to update respective communication plan.
Because the purpose that the communication plan that other communication sets in shared community obtain the first communication set assesses information is to update the respective communication plan of other communication sets, therefore, when only the first communication set can carry out communication plan renewal on some period, first communication set is after other communication sets carry out communication plan renewal and before oneself renewal communication plan, and the communication plan that can not also send the first communication set assesses information.In addition, when the first communication set is updating next period without communication plan, the communication plan transmitted by other communication sets can not also be received and assess information.Fig. 3 is the flow chart of method according to another embodiment of the invention.
There is provided a kind of method of the frequency spectrum share in second equipment of first communication set for wireless distributed communication network for one embodiment according to the second aspect of the invention.First communication set also includes first equipment, and first equipment, which is sent out, send data message to give second equipment.First communication set constitutes the shared community of a shared frequency spectrum with other at least one communication sets.
As shown in figure 3, the method comprising the steps of 310, the second equipment obtains a timing information, and the timing information indicates a period, and only the first communication set can carry out communication plan renewal in the period.The communication plan of one communication set may include that the communication set carries out the selected channel of communication and/or signal transmitting power.
Because the first equipment is intended sending data message to the second equipment, so the first equipment communication plan according to determined by the first communication set sends training signal, to assess identified communication plan.
This method also includes step 320, and the second equipment is received as the training signal transmitted by the first equipment.
This method also includes step 330, and the second equipment is received assesses information as the communication plan transmitted by each communication set in other at least one communication sets.Each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined.Assessment result may include plurality of kinds of contents, such as target capabilities increment or communication plan preference.
This method also includes step 340, and the second equipment assesses information and a predetermined Optimized Iterative strategy according to receptivity, the communication plan of training signal, the communication plan of the first communication set is updated in the period indicated by timing information.
In one embodiment, the second equipment can be estimated in the receptivity of training signal to the existing communication plan of the first communication set, and using assessment result as Optimized Iterative strategy input.
Second equipment will determine that whether the target capabilities of each communication set meet a renewal stop condition.Other communication sets in shared community will also perform such judgement respectively.It if being unsatisfactory for updating stop condition, will repeat the above steps, and carry out communication plan next time and update.Stop condition is updated if met, the communication plan of renewal is defined as respective communication plan by each communication set, and terminates communication plan renewal process.Afterwards, each communication set final communication plan will be communicated according to determined by each.
Communication plan after renewal is sent to the first equipment by the second equipment after communication plan is updated every time, so that the first equipment obtains the communication plan of the first newest communication set.First equipment is after the communication plan of the first newest communication set is obtained, so that it may according to newest communication party's crime
Send training signal.Fig. 4 is the schematic diagram of frame structure according to an embodiment of the invention.
Above-described embodiment can be realized by the frame structure shown in Fig. 4.As shown in figure 4, the communication data that common MAC (medium education, Media Access Control) frame is used between the equipment in transmitting data information, i.e. wireless distributed communication network.Managing mac frame is used for transfer management information, i.e., the communication plan of frequency spectrum share is determined for the equipment in wireless distributed communication network.
In management mac frame, frame control head is used to provide network public information.Access-in management subframe is used for the order for determining the renewal communication plan of multiple communication sets in wireless distributed communication network.The order for how determining the renewal communication plan of multiple communication sets is not the goal of the invention of the present invention, be will not be repeated here.
In frequency spectrum distribution subframe, including multiple time slots, the number N of multiple time slots can be according to supported most number of users are determined in a spectral slice in certain area.In each time slot, only one communication set carries out communication plan renewal.Each time slot includes a policy development interval, a training interval and a signal interval.Corresponding to above-described embodiment, policy development interval is used for the first equipment or the second renewal of the equipment communication plan；Training interval is used for the first equipment and sends training signal；Each communication set that signal interval is used in shared community sends communication plan and assesses information.
From the above embodiments, when the shared community of multiple communication sets one shared frequency spectrum of composition, each communication set is estimated result to communication plan and assessment result is sent to other communication sets by sending training signal according to respective identified communication plan.Over a period, a communication set can only carries out communication plan renewal, i.e., multiple communication sets update communication plan in turn on the different periods.Distributed frequency spectrum share is carried out in this way, does not both need the support of IP connections, spectrum utilization efficiency can be improved again.
Below by taking the frequency spectrum share community of three communication set compositions as an example, the method for further illustrating frequency spectrum share.
Fig. 5 is the schematic diagram of application scenarios according to an embodiment of the invention.
As shown in figure 5, having three communication sets in a shared community, in first communication set
In, equipment Txl, which is sent out, send data message to give equipment Rxl, in second communication set, and equipment Tx2, which is sent out, send data message to give equipment Rx2, in the 3rd communication set, and equipment Tx3, which is sent out, send data message to give equipment Rx3.These three communication sets are needed in two shared channels（Such as two frequency sub-band）Upper determination secret sharing.
First, three communication sets are exchanged with each other the network information and communication group information.The network information includes frequency language use state, Optimized Iterative strategy and iteration convergence condition of use etc..Communication group information includes channel shield amount and the parameter for iteration optimization etc..
Secondly, three communication sets each determine initial communication scheme, i.e., the channel that will be used and the transmission power to be used are selected from two shared channels, and obtain respectively for the period for updating communication plan.Assuming that three communication sets update the order of communication plan updates communication plan first for communication set TxlRxl, followed by communication set Tx2Rx2 updates communication plan, and communication plan is updated followed by communication set Tx3Rx3.
Again, equipment Txl, Τ χ 2 and Τ χ 3 sends training signal according to respective initial communication scheme simultaneously.Equipment Rxl, Rx2 and Rx3 receive training signal and each estimate the quality of received training signal to assess message transmission rate and the co-channel interference sensitivity under respective communication plan.
Then, equipment Rx2 and Rx3 sends respective assessment result in the form of communication plan assesses information.Equipment Rx2 and Rx3 can use a variety of multi-access modes, such as time division multiple acess or CDMA when sending communication plan assessment information.Equipment Rx2 and Rx3 can obtain the multi-access mode that should each use or mode through consultation to obtain the multi-access mode that should each use by way of receiving an out-of-band signalling.Communication plan transmitted by equipment Rxl receiving devices Rx2 and Rx3 assesses information, and assessment result according to oneself and the Optimized Iterative policy update communication plan of oneself.
Next, equipment Txl sends training signal according to the communication plan of renewal, synchronous, equipment Tx2 and Τ χ 3 still sends training signal with original communication plan.Equipment Rxl, Rx2 and Rx3 receive training signal and each estimate the quality of received training signal to assess message transmission rate and the co-channel interference sensitivity under respective communication plan.Equipment Rxl and Rx3 sends respective assessment result in the form of communication plan assesses information.Communication plan transmitted by equipment Rx2 receiving devices Rxl and Rx3 assesses information, and according to the assessment of oneself
And the Optimized Iterative policy update communication plan of oneself as a result.
Then, equipment Tx2 sends training signal according to the communication plan of renewal, synchronous, and equipment Txl and Τ χ 3 still sends training signal with original communication plan.Equipment Rxl, Rx2 and Rx3 receive training signal and each estimate the quality of received training signal to assess message transmission rate and the co-channel interference sensitivity under respective communication plan.Equipment Rxl and Rx2 sends respective assessment result in the form of communication plan assesses information.Communication plan transmitted by equipment Rx3 receiving devices Rxl and Rx2 assesses information, and assessment result according to oneself and the Optimized Iterative policy update communication plan of oneself.
Three communication sets repeat the above steps, the condition of convergence until meeting Optimized Iterative strategy.Fig. 6 is the block diagram of the first equipment 600 according to an embodiment of the invention.
There is provided a kind of first equipment 600 of first communication set for wireless distributed communication network frequency spectrum share for one embodiment according to a third aspect of the present invention.First communication set also includes second equipment, and first equipment, which is sent out, send data message to give second equipment.First communication set constitutes the shared community of a shared frequency spectrum with other at least one communication sets.
As shown in fig. 6, the first equipment 600 includes an acquisition device 610, it is used to obtain a timing information.The timing information indicates a period, and only the first communication set can carry out communication plan renewal in the period.
First equipment 600 also includes a dispensing device 620, and it is used for a communication plan according to the first communication set, sends a training signal to the second equipment.
First equipment 600 also includes a reception device 630, it is used to receive as a training signal receive information transmitted by the second equipment, and the training signal receive information indicates the receptivity of training signal or indicates assessment result of second equipment to the existing communication plan of the first communication set on the basis of the receptivity of training signal.
Reception device 630, which is additionally operable to receive, is assessed information as the communication plan transmitted by each communication set in other at least one communication sets, and each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined.
First equipment 600 is also put including a more new clothes 640, and it is used to assess information and a predetermined Optimized Iterative strategy according to training signal receive information, communication plan, and the communication plan of the first communication set is updated in the period indicated by timing information.
In one embodiment of the first equipment 600, first equipment 600 also includes a determining device, it is used for the receptivity according to training signal, determine that the communication plan of the first communication set assesses information, the communication plan of first communication set assesses information and indicates assessment result of first equipment to the communication plan on the basis of the receptivity of the training signal.The communication plan assessment information that dispensing device 620 is additionally operable to send the first communication set gives other at least one communication sets.Figure is the block diagram of the second equipment 700 according to an embodiment of the invention.
There is provided a kind of second equipment 700 of first communication set for wireless distributed communication network frequency spectrum share for one embodiment according to a fourth aspect of the present invention.First communication set also includes first equipment, and first equipment, which is sent out, send data message to give second equipment 700.First communication set constitutes the shared community that a shared frequency is consulted with other at least one communication sets.
As shown in fig. 7, the second equipment 700 includes an acquisition device 710, it is used to obtain a timing information, and the timing information indicates a period, and only the first communication set can carry out communication plan renewal in the period.
Second equipment 700 also includes a reception device 720, and it is used to receive as the training signal transmitted by the first equipment.
Reception device 720, which is additionally operable to receive, is assessed information as the communication plan transmitted by each communication set in other described at least one communication sets, and each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined.
Second equipment 700 also includes a updating device 730, its receptivity, communication plan for being used for according to training signal assess information and a predetermined Optimized Iterative strategy, and the communication plan of the first communication set is updated in the period indicated by timing information.
In one embodiment of the second equipment 700, the second equipment 700 also includes a determination
Device and a dispensing device.Determining device is used for the receptivity according to training signal, determine that the communication plan of the first communication set assesses information, the communication plan of first communication set assesses information and indicates assessment result of second equipment 700 on the basis of the receptivity of training signal to communication plan.The communication plan assessment information that dispensing device is used to send the first communication set gives other at least one communication sets.
In another embodiment of the second equipment 700, the second equipment 700 also includes a dispensing device, and it is used to send the communication plan updated to the first equipment.It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by appended claims rather than described above, it is intended that all changes Nang fallen in the implication and scope of the equivalency of claim is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.Furthermore, it is to be understood that " an including " word is not excluded for other units Huo Bu Sudden, odd number is not excluded for plural number.The multiple units or device stated in system claims can also be realized by a unit or device by software or hardware.The first, the second grade word is used for representing title, and is not offered as any specific order.
Claims (1)
- Claims1. the method for the frequency spectrum share in a kind of first equipment of first communication set for wireless distributed communication network, first communication set also includes second equipment, first equipment, which is sent out, send data message to give second equipment, first communication set constitutes the shared community of a shared frequency language with other at least one communication sets, and this method includes：A. a timing information is obtained, the timing information indicates a period, only described first communication set can carry out communication plan renewal in the period；B. according to a communication plan of first communication set, a training signal is sent to second equipment；C. receive as a training signal receive information transmitted by second equipment, the training signal receive information indicates the receptivity of the training signal or indicates assessment result of second equipment on the basis of the receptivity of the training signal to the communication plan；D. receive and information is assessed as the communication plan transmitted by each communication set in other described at least one communication sets, each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined；AndE. information and a predetermined Optimized Iterative strategy are assessed according to the training signal receive information, the communication plan, the communication plan of first communication set is updated in the period.2. according to the method described in claim 1, wherein, after the step C also include step：- according to the receptivity of the training signal, determine that the communication plan of first communication set assesses information, the communication plan of first communication set assesses information and indicates assessment result of first equipment on the basis of the receptivity of the training signal to the communication plan；And- communication plan assessment information of first communication set is sent to other described at least one communication sets.3. the method according to claim 1, wherein, the communication plan at least includes one kind in the description below：Channel assignment and power distribution.4. method according to claim 1 or 2, wherein, the communication plan, which assesses information, at least includes one kind in the description below：Target capabilities increment and communication plan preference.5. the method for the frequency spectrum share in a kind of equipment of the mat woven of fine bamboo strips two of first communication set for wireless distributed communication network, first communication set also includes first equipment, first equipment, which is sent out, send data message to give second equipment, first communication set constitutes the shared community of a shared frequency spectrum with other at least one communication sets, and this method includes：A. a timing information is obtained, the timing information indicates a period, only described first communication set can carry out communication plan renewal in the period；B. receive as the training signal transmitted by first equipment；C, which is received, is assessed information as the communication plan transmitted by each communication set in other described at least one communication sets, and each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined；And d. assesses information and a predetermined Optimized Iterative strategy according to receptivity, the communication plan of the training signal, and the communication plan of first communication set is updated in the period.6. method according to claim 5, wherein, step is also included after the step b：- according to the receptivity of the training signal, determine that the communication plan of first communication set assesses information, the communication plan of first communication set assesses information and indicates assessment result of second equipment to the communication plan on the basis of the receptivity of the training signal；And-communication plan assessment information of first communication set is sent to other described at least one communication sets.7. method according to claim 5, wherein, also include after the step d Step：- communication plan of the renewal is sent to first equipment.8. the method according to claim 5, wherein, the communication plan at least includes one kind in the description below：Channel assignment and power distribution.9. the method according to claim 5 or 6, wherein, the communication plan, which assesses information, at least includes one kind in the description below：Target capabilities increment and communication plan preference.10.-kind be used for wireless distributed communication network frequency spectrum share first communication set first equipment, first communication set also includes second equipment, first equipment, which is sent out, send data message to give second equipment, first communication set constitutes the shared community of a shared frequency spectrum with other at least one communication sets, and first equipment includes：One acquisition device, it is used to obtain a timing information, and the timing information indicates a period, and only described first communication set can carry out communication plan renewal in the period；One dispensing device, it is used for a communication plan according to first communication set, sends a training signal to second equipment；One reception device, it is used to receive as a training signal receive information transmitted by second equipment, and the training signal receive information indicates the receptivity of the training signal or indicates assessment result of second equipment on the basis of the receptivity of the training signal to the communication plan；The reception device, which is additionally operable to receive, is assessed information as the communication plan transmitted by each communication set in other described at least one communication sets, and each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined；AndOne updating device, it is used to assess information and a predetermined Optimized Iterative strategy according to the training signal receive information, the communication plan, and the communication plan of first communication set is updated in the period.1 1. first equipment according to claim 10, wherein, in addition to：One determining device, it is used for the receptivity according to the training signal, determine that the communication plan of first communication set assesses information, the communication plan of first communication set assesses information and indicates assessment result of first equipment on the basis of the receptivity of the training signal to the communication plan；AndThe communication plan that the dispensing device is additionally operable to send first communication set assesses information to other described at least one communication sets.12. a kind of second equipment of first communication set for wireless distributed communication network frequency spectrum share, first communication set also includes first equipment, first equipment, which is sent out, send data message to give second equipment, first communication set constitutes the shared community of a shared frequency spectrum with other at least one communication sets, and second equipment includes：One acquisition device, it is used to obtain a timing information, and the timing information indicates a period, and only described first communication set can carry out communication plan renewal in the period；One reception device, it is used to receive as the training signal transmitted by first equipment；The reception device, which is additionally operable to receive, is assessed information as the communication plan transmitted by each communication set in other described at least one communication sets, and each communication plan assesses information and indicates each communication set on the basis of the receptivity of respective training signal to the assessment result of the communication plan each determined；AndOne updating device, its receptivity, described communication plan for being used for according to the training signal assess information and a predetermined Optimized Iterative strategy, and the communication plan of first communication set is updated in the period.13. the second equipment according to claim 12, wherein, in addition to：One determining device, it is used for the receptivity according to the training signal, determine that the communication plan of first communication set assesses information, the communication plan of first communication set assesses information and indicates assessment result of second equipment on the basis of the receptivity of the training signal to the communication plan；AndOne dispensing device, its described communication plan for being used to send first communication set is assessed Information gives other described at least one communication sets.14. the second equipment according to claim 12, wherein, in addition to：One dispensing device, its communication plan for being used to send the renewal is set to described first
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| PCT/CN2009/075016 WO2011060580A1 (en) | 2009-11-18 | 2009-11-18 | Method and device for spectrum sharing in wireless distributed communication network |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018300A1 (en) * | 2007-07-31 | 2009-02-05 | Motorola, Inc. | Method and apparatus for spectrum sharing between an incumbent communication system and a cognitive radio system |
| CN101534510A (en) * | 2008-03-11 | 2009-09-16 | 上海贝尔阿尔卡特股份有限公司 | Method and system for sharing distributed frequency spectrum |
| WO2009132674A1 (en) * | 2008-05-02 | 2009-11-05 | Nokia Siemens Networks Oy | Method, system, base station and signal for communicating planned future cell system information in a radio telecommunication network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018300A1 (en) * | 2007-07-31 | 2009-02-05 | Motorola, Inc. | Method and apparatus for spectrum sharing between an incumbent communication system and a cognitive radio system |
| CN101534510A (en) * | 2008-03-11 | 2009-09-16 | 上海贝尔阿尔卡特股份有限公司 | Method and system for sharing distributed frequency spectrum |
| WO2009132674A1 (en) * | 2008-05-02 | 2009-11-05 | Nokia Siemens Networks Oy | Method, system, base station and signal for communicating planned future cell system information in a radio telecommunication network |
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| WO2011060580A1 (en) | 2011-05-26 |
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